Language Log has these Beaver terms from the Carrier language of BC's interior:

"tsa--beaver
tsatsul--beaver of mid-sized variety
tsayaz--beaver of small variety
tsati--beaver of large variety
tsachenisboo'--beaver kit
tsata'--adult male beaver
tsa'at--female beaver
tsadiya--mother beaver
tsacho--male beaver that is the boss of a whole area
tsaken--beaver lodge
'utsut--runway from lodge of beaver or muskrat to land
lht'azutnai--pair of beaver lodges built close together behind one dam
'udats'un--beaver harpoon
tsambilh--beaver snare
'ulhtusti--trail over beaver dam
tsata'ti--beaver channel under the ice"